Cover for organ keyboard



FIG. 1 is a perspective view of a cover for an organ keyboard showing our new design;

FIG. 2 is a front elevational view on a larger scale;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a cover for an organ keyboard, as shown and described. 